INDIRECT VOLTAMMETRIC DETERMINATION OF TRACE SULFATE IN NATURAL WATERS WITH THE ADSORPTIVE COMPLEX WAVE OF LEAD(Ⅱ)-TETRAKIS (4-TRIMETHYLAMMONIUM PHENYL) PORPHYRIN

摘要

The indirect voltammetric determination of trace sulfate (2.0×10-6～4.0×10-5 mol/L ) with the adsorptive complex wave of lead（Ⅱ）-tetrakis （4-trimethylammonium phenyl） porphyrin （PbTTMAPP） is reported.This method has been used for the analysis of natural waters with satisfactory results.